The Sicilian Clan (1969)

Director: Henri Verneuil

An ambitious young mobster plans an elaborate diamond heist while seducing the daughter of a ruthless mob patriarch as a determined police commissioner closes in on all of them.  Starring Alain Delon, Jean Gabin, Lino Ventura and Irina Demick.

Run time: 2 hours 5 minutes

French with subtitles.